单词	octagon
释义	octagonoctagon /ˈɑktəˌgɑn/ noun [countable] Etymology ETYMOLOGYoctagon Origin: 1500-1600 Latin octagonum, from Greek, from okta- eight + -gonon -gon math, geometry a flat shape with eight sides—octagonal /ɑkˈtægənl/ adjective:  an octagonal room
随便看	environs envisage envision envoy envy enzyme eon -eous EPA epaulet ephemera ephemeral ephemerally Ephesians epic epicenter epicure epicurean epidemic epidemiological epidemiologist epidemiology epidermal epidermal cell epidermis

英语词典包含48224条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。